"Professional looking" camera

The drummer in our band was going to go to the Soundwave Festival this Sunday with my brother (who's the guitarist) and has now dropped out so now I've got a free ticket in.
In calling up Chugg, I've found out from the fairly useless girl there that I can't bring in a "professional looking camera"... which is silly and I asked what about a small lens... and she didn't have a clue.
Do I bring the D70 with a 45mm on it and hope I get in (or otherwise put it in the car) or just bring a 5700 and extra battery grip (because I will run out of batteries)?
It's times like this I wish I either had a Leica M8 or had the foresight to call up ahead and use my media pass...
In calling up Chugg, I've found out from the fairly useless girl there that I can't bring in a "professional looking camera"... which is silly and I asked what about a small lens... and she didn't have a clue.
Do I bring the D70 with a 45mm on it and hope I get in (or otherwise put it in the car) or just bring a 5700 and extra battery grip (because I will run out of batteries)?
It's times like this I wish I either had a Leica M8 or had the foresight to call up ahead and use my media pass...
